martin collar adjustable nylon turquoise 6Adjustable Nylon Collar Turquoise 45 65 cm With this comfortable, adjustable collar around his neck, your dog will happily go for a walk. The owner has also been considered; thanks to the handy click closure, you can fasten and unfasten the collar in one movement. In addition, you can easily adjust the collar using the plastic buckle on the collar. The collar is resistant to pulling and jerking and can withstand up to 152 kilos without coming undone.